Machine for stripping oil cakes



Feb. 17. 1925. 1,526,860y

. T. J. MCNULTY I.MACHINE FOR STRIPPIN OIL CAKES Filed Feb. 192,4 4sheets-s1eet 1 Feb. 17. 1925.. l,5Z6,'6Q

' T. J. MGNULTY MACHINE Fon STRIPPING OIL CAKES Filed Feb. 6, 192.4 4Sheets-Sheet 3 Feb; 11'. 1925. y 1,526,860

VT. J. MCNULTY MACHINE FOR STRIPPING OIL CAKES Filed Feb. e. 19274 4Sheets-Sheet 4 l wl 41 Patented Feb. 17, 1925.

UNITED STATES THOMAS J'. MGNULTY, GF BROKHAVEN, MISSISSIPPI.

MACHINE FOR STRIPPING OIL CAKES.

Application filed February 6, 1924i. Serial No. 691,021.

To all whom t may concern Be it lrnown that 1, THOMAS J. lictoNUr/ry, acitizen of the United States, residing at Brookhaven, in the county ofLincoln and State of Mississippi, have invented certain new and usefulImprovements in a Machine for Stripping Oil Cakes, of which thefollowing is a specification.

This invention relates to a machine for removing the cloth from cottonor linseed cakes after the oil has been pressedtherefrom. v

An object of the invention is to provide a machine to strip the clothfrom the cake in an expeditious manner, without damaging the vcloth orcake, or involving any danger' of injury to the operator.

Another object of the invention is the provision of a machine, that isautomatic in operation, which upon receiving a wrapped cake will engagethe cloth and automatically strip the same from the calze, upon theoperation of a single lever.

It is also an object of the invention to provide a cake-strippingmachine of the kind indicated, which is substantial in construction,which can lbe manufactured eco-` ltion proceeds, the invention residesin the construction and arrangeijnent of parts, as hereinafter describedand claimed, it being understood that changes can be made within thescope of what is claimed, without departing from the spirit of theinvention.

The invention is illustrated in the` accompanying drawings, wherein:

Figure 1 is a front view of my improved stripper t Figure 2 is a centrallongitudinal section through the same,

Figure 3 is a top plan thereof,

Figure 4; is a section on line 4 4 of Figure 3,

Figure 5 is a fragmentary front view showing the cloth-being strippedfrom the cake, `i

Figure 6 is a section taken on line 6 6 of Figure 5 showing the stripperremoving the cloth, and

Figure 7 is a fragmentary longitudinal section of a modified formshowing a pair of fingers for engaging the clothi e In 'carrying out theinvention there is provided a pair of supporting structures 10 and 11made from angle iron, said structures having` legs 12 and 13 and a topconnecting portion 111. The supporting structures 10 and 11 have theirlegs 12 and 13 connected together at their lower ends by cross anglemembers 15, to prevent said legs -from spreading. The structures 10 and11 are connected together so as to hold the same in spaced relation by apair of angle bars 16 and 17 secured to the legs 12 and 13 of eachsupporting structure. Y t

The forward ends of the angle bars 16 and 17 extend forward of thesupporting structure 10 and support a platform or table 18 intermediateits end, said table or platform having a liange 19 upon its rear side,and supported at its opposite end by brace members 2O and 21 connectedat their lower ends to the lower portions of the legs 12 and 13 of thesupporting structure 10.

The table or platform 18 is adapted to receive the cake thereon to bestripped and has an opening 22 therein at its central portion betweenthe angle bars 16 and 17 for allowing a roller 23 to pass through toraise the cake. The roller 23 is reduced in diameter at its centralportion so that the same will only engage the cake at its opposite ends.The terminals 24 of the roller 233 pass through slots 25 and 26 providedin the uprights 27 and 28 of a U-shaped roller supporting frame 29.Positioned upon the ter minals 24 between the uprights and the rollerare bearings 30 and 31 which receive the terminals 24 to support theroller. De pending downwardly from the bearings 30 and 31, are arms 32having coiled springs thereabout. Said arms 32 extend through openingsin the U-shaped frame 29 and have pins 34 through their lower ends tolimit the upward movement of the roller 23. rlhe springs 33 engage thebearings 30 and 31 andthe U-shaped frame 29 and yieldably hold theroller 23 in a raised position.

To guide the U-shaped frame 29 carrying the roller 23m its upward anddownward movement, I have provided braces 35 and 36 having their endssecured to the under surface of the platform or table 18, and theirintermediate portion provided with recesses 37 for receiving theuprights 27 and 28 of the U-shaped frame. y

For aising the Ushaped frame 29 a stud 38 is connected thereto having apivotal connection 39 with a lever 110, whichin turny has its oppositeend connected by means of a pin 41 to one end of a pivoted bell cranklever 42, said bell crank lever 42 pivoted between a pair of supportingarms 43 connected to a cross bar 44 extending from the legs 12 and 13 ofthe supporting structure 10. The arm 45 of the bell crank 42 has a plate46 arranged thereon and is held in place by its ends being bent inwardlyand secured to said arm 45. A pin 47 extends through the arm 45 andplate 46 for engagement in a notch 48 provided in and adjacent one endof a shaft 49. The opposite end of the shaft 49 is pivotally connectedtoa bracket 50 rigidly carried by a slidable shaft 51. Said shaft 51 isadapted to be moved by a bell crank 52 having one of its arms 53connected thereto, the bent portion pivoted at 54 between the supports55 attached to the floor, and a foot-engaging portion 56 provided on thearm 57 on said bell crank.

A bracket 58 is secured to the under surface of the table 18 and has oneend of the rod 59 adjustably connected thereto as at 60, while theopposite end of the rod is connected to the arm 57 having the foot pedal56 thereon, by a co-il spring 61, said coil spring being adapted toreturn the foot pedal when the same is released.

Attached to the arm 53 of the bell-crank 52 is pivotally and adjustablyconnected a cylinder 62 which receives a piston 63 that is pivotallyconnected to a bracket 64 attached to the angle iron 15 between the legs12 and 13 of the support 11. The cylinder 62 has a small opening` 65therein for allowing the exit of the air contained in the cylinder in aslow manner to absorb the shock when the operator releases the footpedal 56.

A shock-absorbing means 66 is also provided for preventing` the abruptor quick descent o-f the U-shaped frame 29 carrying the roller 23, saidshock-absorbing means consisting of a rod 67 having one end thereofadjustably connected to the U-shaped frame 29 and its opposite or lowerend secured to a cylinder 68, which receives a piston 69 supported by anupright bracket 70 secured to the floor. A small opening 71 is arrangedin the cylinder 68 for the same purpose as the opening in the cylinder62.

Attached to the rod 67 is a block 72 which carries a roller 73 adaptedto be engaged in a notch 74 provided in the lever 75, said lever 75having its upper end pivoted to a bracket 76 secured to the undersurface of the table 18. A spring 77 is connected to the lever 75 andthe cross bar 78 which extends between the legs 12 and 13 of thesupporting structure 10 for holding the lever 75 against the roller 73so that the roller will engage in the notch 74 when the U-shaped frame29 and the roller 23 are raised to hold the same in such a positions l lA roller 79 is also secured to the rod 67 and is adapted to engage theforward end of the shaft 49 to disengage the notch 48 from the pin 47 toprevent further upward movenient of the U-shaped frame carrying theroller.

A rotatable sleeve 80 is mounted in bearings 81 and 82 carried by thetop or connecting portion 14 of the supporting structures 10 and 11respectively. To prevent forward sliding' movement of the sleeve 80 inthe bearings, a collar 83 is secured to the sleeve by a screw 84 and toprevent the sleeve against rearward sliding movement, the hub 85 issecured to said sleeve, said hub 85 having an annular lianged portion 86which will hereinafter be more fully described.

The forward end of the sleeve 80 is adapted to form a roller upon whichthe cloth from the cake is wound. A guide flange 87 is secured to thesleeve at this point to form a stop for the cake when placed upon thetable 18. rlhe flange 87 is annular and has a hub portion 88 where thesame is secured to the sleeve as at 89.

The sleeve 80 and the interior of the hub 88 have aligning slots 90 and91 respectively, which receive a right-angular bent cloth engaginglinger 92, said linger 92 having a portion 93 provided with a point 94beveled to form a sharp edge at its lowersurface. Said finger is adaptedto be moved longitudinally with respect to the sleeve for engagingbetween the cloth and cake. The upright portion 95 of the finger 92 isreceived in a slot 96 provided in the block 97 and is held therein bymeans of a bolt 98. A strip 99 is secured as at 100 to the interior ofthe sleeve 80 to be received in a groove formed in the block 97 topermit sliding movement of the block with relation to the sleeve.

Attached to the rear of the block 97 is a bar 101, which is hexagonal incross section and extends through a bearing 102 provided in the rear endof the sleeve 80. The rear end of the bar 101 is threaded at 103 topermit the attachment and assembly of a pair of flanged members 104,which when assembled provide an annular groove 105 for receiving thecollar 106. Secured to the collar 106 are al pair of connecting members107 having their outer ends attached to the lever 108 as at 109. Saidlever in turn is pivoted to ay supporting arm 110 secured to thesupporting structure 11 and has its opposite'end connected to a shortconnecting link 111. The opposite end of the connecting link 111connects with the upper end of the lever 112 which is pivoted as at 113to the arm 114 extending from the supporting structure 11. At the lowerend of the lever 112 is provided a pin 115 to be received in a slot 116provided in the rear end were ofthe slidable shaft-5L Bythe provision oftheslots 116 it can be seen that the `roller 23 will be elevated beforethe cloth-engagengaging `finger 92 in its rearward position.`

In order to providefor the rotation of the sleeve 80. an angular clutchflange 118 having a. hub 119 is secured to?` the sleeve 80 as atAttached to the forward face of the flange 118 as at121 is acircularfriction member 12,2 adapted to be engaged by an annular flange 123carried by the slidable belt ,pulley 124. A sleeve 125 of any desirablebearing material is arranged between the belt pulley 124 and the sleeve`8 0"`and is adapted to be held in place by a ring member 126 secured asat 127 tothe forward end of the hub of thelbelt pulley. This ring 126also provides one wall of an annular groove 128 formed onthe hub, which`receives a collar 129 to which theupper end of` the" lever 130 ispivoted.

The lever 130 is pivoted as at 131 .to a supporting arm 132 secured tothe top con; nection portion 14,ofthe forward supportfy ing structure 10and basa coil spring 133 connected tothe same and tothe cross bar 7 8LThe lower end of the? "lever 130lias a `pivoted block "134 securedthereto which has an Yopen-` ing therein that reeeives; the lrodAdjustably positioned on tlre rod 135 are a pair ofstop collars 136 and137, one positioned" `on each, sideof block 134, andsprings: 138

and 139"arle 'positioned between each collar 136 and 137 and theblock'1i3`4`, to permit a yieldable stop for engaging the block when thelever 112 is swung'to engage the clutch faces 122'and123.

The annular flange 86 on the hub 85 which has been referred'to before,is'secured to the sleeve as at 140, Vand has an opening 142 therein thatreceives the bolt 143 carrying the roller 144. The roller 144 is adaptedto engage the upper end of the lever 145 when the same is in theposition indicated in Fig,-y ure 2 of the drawings, to form a stop for"the rotatable sleeve 80, so that the cloth engaging finger 92thereonwill always be stopped with the cloth-engaging finger on theunder surface thereof. M

The lever 145 has a loose pivotal connection as at 146,`to thesupporting arm'147 so that the block 148 on the lower: endof the samethat receives the rod 149 when engaged by eltherof theA springs 150 or151 carried by therod 149 on" the opposite sides of the block 148andheld in position by the adjust` able collars 152 and will swing theupper 1end ofthe lever 145 out or in the path of therotatable Vroller144.Y The rod 149 is connected to the upper portion of thefpivotedleve`r`112 for sliding movement. Meunted upontlie angle irons 16 and 17are a pair of brackets, 154 uponA the upper side of the iron 16, and 155on" thedower member of the iron 17. Arod 156exte`nds through an opening157 in the lever 145 from said brackets and held in position by nuts'158 on the opposite end of said rod'156. Coillsprings 159 and 160 lareprovided on the rod 156, one on each side of the lever 145 so that whenthe roller 144 strikes the lever 145, onev of the springs 159 or 160will stop the rotation of the sleeve80.

Should it be found necessary to rotate the sleeve in the oppositedirection the belt that drives the belt pulley secured upon the sleeve80 may be twisted as is often done, and the bolt 143 removed from theopening 142 and placed in the opening 161 as shown in Fig ure 4 of thedrawing.` By changing the position of the roller 144 the cloth-engagingfinger 9,2 upon the sleeve 80 will be stopped sleeve in the oppositedirection.

Securedto the top or connecting section 14 of the suppcrting structure10 on each side of the bearing 81 are `a pair `of tip-standingsupporting members 1,62 and 163, which have rods 164 attached to theirupper ends and eX- tend'ing forward for supporting rollers 165 and 166,the forward ends of the rods 164 be-4 ing'connected togetherby a barlink 1,67. The rollers 165 and 166 are providedy for a safety device toprevent the operator from coming intofcontact with sleeve 80 shouldhelose his balance while operating 4theniachine. The rollers ca-iralso beused when a cake breaksto strip half cakes.

In' operation of my improved stripper, the cake having, the usual Vcloththereabout is placed onthe table or platform 18 with the at the `desiredposition, when rot-ating the overlap of the cloth beneath the sleeve 80.

Downward pressure is then applied upon the foot lever 56, which willmove the shaft 51 forward thus swinging the bell crank 42 upon its pivotuntil t-he notch 48 in the shaft 49 which is attached to the shaft 51engages the pin 47 of said bell crank. The upper movement of the bellcrank42 will raise the U-shaped frame'28 carrying the roller 23, duetothe connecting link 40 being attached to each. The elevating of theroller 23 will raise the cake upward and against the sleeve 80 andyieldably hold the same in such position by means `of the springconnection of said roller with the U-shaped frame.

Upon the upward movement of the frame 29 the rod 67 will4 also be raiseduntil the roller 73 carried thereby engages in the notch 74 in thespringeheld` lever 75, said notch andro-ller will hold the roller 23 inraised position. When the roller or liug 75 also carried by the rod 67strikes the forward end of the shaft 49 the notch 38 thereinwill bedisengaged from the pin 47 of the bel] crank 42 thus preventing furtherupward movement of the roller`23`, the sha-ft 49`ha`v- -which isattached to the lever 112.

ing been moved in the path ot the roller or lug 79 due to its forwardmovement with the shaft 51.

Vhile the above movement or' parts has ieen taking place the lever 112has remained in the same position due to the slot connections 15 and 16wit-h the rear end ot the shaft 51. `When the pin 15 reaches the end ofthe slot 16 the lever 112 will be swung upon its pivot thus causing thecloth-engaging linger 92 to be moved forward and pass partially betweenthe cake and the cloth, the movement of said finger 92 being due to theblock 97 carried upon the forward end of the slidable shaft 101, whichin turn is moved by the lever 108 connected to the lever 112 through thelink 111.

As the lever 112 is swung further upon its pivot the upper end ot thelever' 1425 will be moved out of the path ot the roller 14e-'lcarried bythe member S6, due to the spring 150 engaging the lower end oi the lever145, said spring being connected to the shait 110 At approximately thesame time a lug 169 carried by the forward end of the lever 51 willengage the pivoted spring-held lever disengaging the notch 711 thereinwith the roller or lug 7 3 carried by the rod 67, thus allowing theroller 23 to descend due to its weight, said downward movement beinggradual due` to the slow escape of air through the opening 69 in thecylinder 68.

As the roller 23 is lowered the lever 130 connected to the lever 112through the rod 135 and the yieldable stops and 189, will be swung uponits pivot thus sliding the belt pulley 124; until the clutch tacos 122and 123 engage each other7 which will cause the sleeve to rotatel due tothe movement of said belt pulley. The sleeve S0 will wind the cloththereon stripping it from the cake due to the cloth engaging linger 92holding` the cloth to the sleeve.

Then the cloth is entirely stripped from the cake the toot pedal 56 isreleased. The same will gradually move back to its tirst position, dueto the ycylinder 62 and piston 63. The upper end ot the lever 1415 willmove in the path of the rotating roller 1.44, which is still revolvingdue to momentum, and stop the rotation of the sleeve 80 in a yieldablemanner, due to the springs 159 and 156 thus preventing` an abrupt stop.

Should it be desired, air or a liquid fluid may be forced into thecylinders 62 and 68 to form a hydraulic operating means for operatingthe machine instead ot using the 'foot pedal 56.

ln Figure 7 ot the drawings l have shown a modified form of myinvention, where the sleeve is greater in length. and an additionalcloth engaging finger 170 is provided to engage the opposite side ot thecloth from that engaged by the linger 92. Said linger 170 178. Saidlinger 170 is adapted to slide through arr slot iormed longitudinally 1nthe sleeve 80.

{aving thus described my invention, what l claim as new is:

1. ln a cake-stripping machine, a rotatable member, means for holding aclothwrapped cake adjacent said rotatable mem ber, and means upon saidrotatable member arranged for sliding movement with relation thereto toengage under one side ot the cloth wrapper upon the cake tor strippingthe cloth from the cake upon rotation ot said rotatable member.

2. ln a cake-stripping machine, a rotatable member, means for holding aclothwrapped calre adjacent said rotatable member, and a finger carriedupon said rotatable member arranged for sliding movement with relationthereto to partially engage. under the cloth-wrapper upon the calze'from one side thereof to hold the wrapper to said rotatable member forstripping same irom said rotatable member upon rotation thereof.

3. ln a cake-stripping machine, a rotatable member, a roller arrangedunderneath said rotatable member for receiving and holding acloth-wrapped cake against said rotatable member, a linger arranged uponsaid rotatable member ior sliding movement with rclation thereto, andmeans for sliding said linger under one side ot the cloth wrapper uponsaid caire 'tor strippine' the cloth therefrom upon rotation ot saidrotatable meinber.

4i. ln a cake-stripping machine, a rotatable member, a roller arrangedbeneath the rotatable member for receiving a yclothwrapped caire toelevate and hold the same against said rotatable member, a finger uponsaid rotatable member arranged for sliding movement with relationthereto, means Jfor sliding said vnger to engage under the cloth uponthe cake while the same is held against said rotatable member', andmeans for rotating said rotatable member after said finger has engagedunder the cloth on the cake.

5. In a cake-stripping machine, a rotatable member, a roller arrangedbeneath the rotatable member Jfor receiving a clothwrapped caire toelevate and hold the same against said rotatable member, a linger uponsaid rotatable member arranged for sliding movement with relationthereto, means for htesse sliding said finger to engage under the clothupon the cake while the same is held against said rotatable member, andmeans for rotating said rotatable member after said linger has engagedyunder the cloth on the cake, and means for lowering said roller petorethe rotation of said rotatable mem- 6. In a cake-stripping machine, arotatable member', a roller arranged beneath the rotatable member forreceiving a clothwrapped cake to elevate and hold the same against saidrotatable member, a linger upon said rotatable member arranged forsliding movement with relation thereto, means for sliding said finger toengage under the cloth upon the cake while the same is held against saidrotatable member, and means for rotating said rotatable member aftersaid linger has engaged under the cloth on the cake, and means to stopthe rotation of said rotatable member so that said linger thereon willbe in a position to engage under the wrapper of the next cake.

7. In a cake-stripping machine, a rotatable member, a roller arrangedbeneath said rotatable member' for receiving a clothwrapped calzethereon, a frame for yieldably supporting said roller therein, means forelevating said frame to yieldably hold the cake between said roller andsaid rotatable member, and a finger upon said rotatable member forengaging the cloth upon the cake to strip the same therefrom uponrotation of said rotatable member.

8. In a cake-stripping machine, a rotatable member, means for elevatingand holding a cake against said rotatable member, a finger upon saidrotatable member arranged for movement with relation thereto to engagethe cloth upon the cake, and means arranged to automatically elevatesaid holding means, to engage said finger to the cloth, lower theelevating and holding means, and then rotate said rotatable member tostrip the cloth from the cake, upon operation of a single member.

9. In a cake-stripping machine, a rotaable member, means for elevatingand holding a cake against said rotatable member, a finger upon saidrotatable member arranged for movement with relation thereto to engagethe cloth upon the cake, and means arranged to automatically elevatesaid holding means, to engage said finger to the cloth, to lower theelevating and holding means, and then rotate said rotatable member tostrip the cloth from the cake upon operation of a single member, andmeans to stop rotation ot said rotatable member so that said finger willbe in proper position to engage the cloth of the next cake upon releaseof said operating member.

10. In a cake-stripping machine, a rotatable member, a roller arrangedbeneath said rotatable member for receiving a clothwrapped cairethereon, a frame tor yieldably supporting said roller therein, means forelevating said trame to yieldably hold the cake between said roller andsaid rotatable member, and a finger upon said rotatable member forengaging the cloth upon the calre to strip the same therefrom uponrotation of said rotatable member, and means for preventing shocks whenthe roller is returned to its lower position.

11. In a cake-stripping machine, a rotatable member, a roller positionedbeneath said rotatable member adapted to receive a cloth-wrapped cake toelevate and hold the same against said rotatable member, an annularilange upon said rotatable member adapted to rotate therewith to act asa stop when placing the cake upon the said roller, and a finger uponsaid rotatable member for engaging the cloth of said cake to strip thesame from the cake upon rotation of the rotatable member.

12. In a cake-stripping machine, a rotatable sleeve having |a slot inthe side wall thereof, means beneath said sleeve for receiving,elevating and holding a clothwrapped cake against said sleeve, a blockwithin said sleeve arranged for sliding movement therein, a fingerextending thro-ugh the slot in said sleeve and held by said block, andmeans for sliding said block in said sleeve to engage saidiinger withthe cloth upon the cake to separate the same from the caire upon therotation of the sleeve.

13. In a cake-stripping machine, a rotatable sleeve, having a slot inthe side wall thereof, means lbeneath said sleeve for receiving,elevating and holding a clothwrapped cake against said sleeve, a blockwithin said sleeve arranged for sliding movement therein, a lingerextending through the slot in said sleeve and adjustably held by saidblock, Ia shaft attached to said block and extending through one end oisaid sleeve, and means attached to the end ot said shaft extending tosaid sleeve to slide said finger between the cloth and the cake so thatthe same will be separated upon rotation of the sleeve.

14. In a cake-stripping machine, a rotatable member, means beneath saidrotatable member for receiving, elevating, and holding a cloth-wrappedcake against said rotatable member, and means upon said rotatable memberarranged for sliding movement in relation thereto to engage between thecloth upon the cake on both sides thereof to strip the cloth from thecake upon rotation of said rotatable member.

15. In a calze-stripping machine, a rotatable member, means beneath saidrotatable member for holding a cloth-wrapped cake against said rotatablemember, a pair of ngers carried by said rotatable member In testimonywhereof, have affixed my and arranged 'for slldlng movement Wlthleslgnature 1n the presence of two Wltnesses. latlon thereto7 and meansfor shdlng Saud ngers to engage the opposite sides of said THOMAS J.MGNULTY. cake under the cloth to strip the same from Witnesses: the cakeupon rotation of Said rotatable A. SINGLAIR,

member. R. EHEL SMITH.

